WebKit, as used in Apple iOS before 9.2.1, Safari before 9.0.3, and tvOS before 9.1.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-1724. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-1727